Skip to main content
SpringerLink
Log in

Oswaldocruzia filiformis (Nematoda: Trichostrongylidae): Morphology of developmental stages, parasitic development and some pathological aspects of the infection in amphibians

  • Original Investigations
  • Published:
Zeitschrift für Parasitenkunde Aims and scope Submit manuscript

Abstract

Differences between the developmental stages ofOswaldocruzia filiformis are described as a result of morphological studies on microscopical sections and intact stages of the parasite.

Infective third stage larvae have double lateral alae on sheath and cuticle. The sheath has ten longitudinal lines and a fine cross striation. Parasitic third stage larvae have double lateral alae and a characteristically formed head end. Fourth stage larvae have single lateral alae, while adults have cuticular ridges, approximately 58 in males and 81 in females at the midlevel of the intestine. Detailed measurements and drawings are presented.

Early parasitic development occurs in the mucosa of the stomach following oral infection. Third stage larvae return to the lumen of the gastro-intestinal tract and the next two parasitic moults occur in the lumen of the intestine. The prepatent period was 29 days inBufo bufo.

Third stage larvae caused atrophy and necrosis in the mucosa of the stomach. The presence of fourth stage larvae and (sub)adults resulted in flattening of the epithelial cells of the intestine. Young fourth stage larvae, deeply burrowed between the villi of the intestine, can cause tunnel-like holes in the epithelium.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Baker MR (1977) Redescription ofOswaldocruzia pipiens Walton, 1929 (Nematoda: Trichostrongylidae) from amphibians of eastern North America. Can J Zool 55:104–109

    Google Scholar 

  • Baker MR (1978) Development and transmission ofOswaldocruzia pipiens Walton, 1929 (Nematoda: Trichostrongylidae) in amphibians. Can J Zool 56:1026–1031

    Google Scholar 

  • Baker MR (1981)Amphibiophilus versterae n.sp. andA. natalensis (Walton, 1935) (Nematoda: Trichostrongyloidea) fromRana spp. (Anura) of Southern Africa. Can J Zool 59:1510–1517

    Google Scholar 

  • Chitwood MB, Lichtenfels JR (1972) Identification of parasitic Metazoa in tissue sections. Exp Parasitol 32:407–519

    PubMed  Google Scholar 

  • Douvres FW (1957) Keys to the identification and differentiation of the immature parasitic stages of gastrointestinal nematodes of cattle. Am J Vet Res 18:81–85

    PubMed  Google Scholar 

  • Dunn AM (1978) Veterinary Helminthology. 2nd ed William Heinemann Medical Books Ltd, London

    Google Scholar 

  • Durette-Desset MC, Chabaud AG (1977) Essai de classification des Nématodes Trichostrongyloidea. Ann Parasitol Hum Comp 52:539–558

    PubMed  Google Scholar 

  • Durette-Desset MC, Chabaud AG (1981) Nouvel essai de classification des Nématodes Trichostrongyloidea. Ann Parasitol Hum Comp 56:297–312

    PubMed  Google Scholar 

  • Eckert J, Schwarz R (1965) Zur Struktur der Cuticula invasionsfähiger Larven einiger Nematoden. Z Parasitenkd 26:116–142

    PubMed  Google Scholar 

  • Eysker M (1980) Inhibited development of gastrointestinal nematodes of sheep. Thesis, Utrecht

  • Hendrikx WML (1981) Seasonal fluctuation, localisation and inhibition of development of parasitic stages ofOswaldocruzia filiformis (Goeze, 1782) Travasos, 1917 (Nematoda: Trichostrongylidae) inBufo bufo L., 1785 under natural and experimental conditions in the Netherlands. Neth J Zool 31:481–503

    Google Scholar 

  • Hendrikx WML, Gelder JJ van (1980) Influence of helminths on juvenileBufo bufo under experimental conditions. In: Coborn J (ed), Proceedings European Herpetological Symposium 1980 Oxford, husselBEES Aston, p 121–123

  • Moppes MC van, Hendrikx WML, Zwart P (1982)Oswaldocruzia filiformis (Trichostrongylidae) in the common toad (Bufo bufo)-Localisation of parasitic stages and pathology. Parasitology 84:xlviii

    Google Scholar 

  • Moravec F, Vojtková L (1975) Variabilität von zwei Nematodenarten-Oswaldocruzia filiformis (Goeze, 1782) andOxysomatium brevicaudatum (Zeder, 1800) der gemeinsamen Parasiten der europäischen Amphibien und Reptilien. Scripta Fac Sci Nat UJEP Brunensis Biol 2; 5:61–76

    Google Scholar 

  • Nichols RL (1956) The etiology of visceral larva migrans II. Comparative larval morphology ofAscaris lumbricoides, Necator americanus, Strongyloides stercoralis andAncylostoma caninum. J Parasitol 42:363–399

    PubMed  Google Scholar 

  • Sommerville RI (1957) The exsheathing mechanism of nematode infective larvae. Exp Parasitol 6:18–30

    PubMed  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Veterinary Parasitology and Parasitic Diseases, University of Utrecht, Yalelaan 7, 3584 CL, Utrecht, The Netherlands

    W. M. L. Hendrikx & M. C. van Moppes

Authors
  1. W. M. L. Hendrikx
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. C. van Moppes
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hendrikx, W.M.L., van Moppes, M.C. Oswaldocruzia filiformis (Nematoda: Trichostrongylidae): Morphology of developmental stages, parasitic development and some pathological aspects of the infection in amphibians. Z. Parasitenkd. 69, 523–537 (1983). https://doi.org/10.1007/BF00927709

Download citation

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00927709

Keywords

Search

Navigation